Non-invasive leak detection device for flexible, fitted respirator tubing

Abstract

The present disclosure provides a flexible and attached breathing machine pipeline non-invasive air leakage detection device, comprising: a support frame, a support structure is installed on the support frame, the support structure comprises a guide shaft rotatably fitted in the support frame, a breathing machine pipe is installed on the guide shaft, and a connecting frame is fixed in the support frame; a detection structure, the detection structure comprises a detection pipe, the detection pipe is fixedly connected with the connecting frame, a detection rod is fixed on the detection pipe, and a first sliding rod is slidingly fitted in the detection rod. In the flexible and attached breathing machine pipeline non-invasive air leakage detection device, the guide shaft is rotatably installed in the support frame, the breathing machine pipe can be supported by the guide shaft, so that the breathing machine pipe is prevented from being folded, the breathing machine pipe can normally ventilate during detection, the air leakage position is prevented from being blocked to affect the accuracy of the detection result, and the breathing machine pipe can be detached for separate detection by the detection pipe.

Description

Technical Field

[0001] This disclosure relates to the field of air leakage detection technology, and in particular to a non-destructive air leakage detection device for flexible, fitted ventilator tubing. Background Technology

[0002] A ventilator is a medical device that can replace spontaneous ventilation. It is widely used for patients with respiratory failure, during surgery for anesthesia and respiratory management, respiratory support therapy, and in emergency resuscitation. Ventilators require a tubing structure to deliver breathing gases to the patient. Therefore, leaks in the ventilator tubing reduce the efficiency and stability of oxygen delivery. Existing leak detection devices for ventilator tubing involve immersing the tubing in a water tank and filling it with gas. The presence of bubbles is observed to determine if a leak exists. However, because bubbles quickly burst and dissipate, this method only indicates the presence of a leak, not its extent. For tiny leaks, the bubbles are extremely small, increasing the difficulty of observation. Furthermore, it cannot efficiently and accurately pinpoint the location of the leak. Longer ventilator tubing requires repeated manual movement and disassembly, resulting in long detection cycles, complex and laborious operations. Frequent immersion can also damage the tubing, affecting its lifespan. Summary of the Invention

[0003] This disclosure aims to at least partially address one of the technical problems in the related art.

[0004] Therefore, the purpose of this disclosure is to provide a non-destructive leak detection device for flexible, conformal ventilator tubing.

[0005] To achieve the above objectives, this disclosure provides a flexible, non-destructive leak detection device for ventilator tubing, comprising: a support frame, on which a support structure is mounted, the support structure including a guide shaft rotatably fitted within the support frame, a ventilator tubing mounted on the guide shaft, and a connecting frame fixed within the support frame; a detection structure including a detection tube fixedly connected to the connecting frame, a detection rod fixedly mounted on the detection tube, a first sliding rod slidably fitted within the detection rod, a distance detector mounted within the detection rod, an air cavity formed within the wall of the detection tube, a plurality of first through grooves formed between the air cavity and the detection tube, and a blocking structure within the air cavity, the blocking structure including a first sealing plate and a first sealing... The sealing plate is located on the periphery of the first through groove; the connection structure includes a first connector and a second connector, both of which are snapped and fixed to the detection tube. A first sealing airbag is installed at both ends of the detection tube. A second sealing airbag is installed on the first connector. A pressure detector is installed inside the second connector. A second cavity is opened inside the second connector and communicates with the second connector. A fixing frame is installed inside the second cavity. A first plug and a second plug are slidably fitted inside the fixing frame. A sealing film is installed inside the second connector. The first sealing airbag, the second sealing airbag, and the sealing film are all connected to the ventilator tubing.

[0006] Optionally, a motor is fixed on the support frame, and a rotating shaft is rotatably fitted inside the support frame. The output end of the motor is fixedly connected to the rotating shaft, and the rotating shaft is fixedly connected to the guide shaft. The guide shaft has a groove and multiple protrusions are fixed on the guide shaft, and the protrusions are in contact with the ventilator tube.

[0007] Optionally, the detection rod has a sliding groove, and a first communication port is provided between the sliding groove and the detection tube. The distance detector includes a distance sensor, which is fixed in the sliding groove. One end of the first sliding rod is located in the sliding groove, and a piston is fixed to the end of the first sliding rod located in the sliding groove.

[0008] Optionally, a connecting air tube is fixed on the detection tube, which is connected to the air chamber. A first sealing plate is located inside the air chamber, and multiple connecting rods are fixed on the first sealing plate. A first through groove is opened on one side of the air chamber, and the connecting rods are located in the first through groove. A sealing sleeve is fixed around the connecting rods. Multiple springs are fixed between the first sealing plate and the cavity wall of the air chamber. A connecting air passage is opened inside the detection tube, which is connected to the air chamber and the first fitting sealing airbag. An electric valve is installed inside the connecting air passage.

[0009] Optionally, one end of the detection tube is provided with a first slot, a first locking block is fixed on the first connector, the first locking block is locked in the first slot, a first cavity is provided in the first connector, a third communication port is provided between the first cavity and the second fitting sealing airbag, the first connector is made of flexible material, a compression block is installed on the first connector, and a fixing bolt is threaded on the compression block.

[0010] Optionally, the other end of the detection tube is provided with a second slot, a second locking block is fixed on the second connector, the second locking block is locked in the second slot, a first electrode plate is fixed on the second locking block, a second electrode plate is fixed in the second slot, and the first electrode plate is in contact with the second electrode plate.

[0011] Optionally, the fixing frame is slidably fitted into the second cavity. The fixing frame has a sixth connecting port and a fourth connecting port, and the second connector has a fifth connecting port. Through the sliding of the fixing frame, the fifth connecting port is connected to the sixth connecting port or the fourth connecting port. Multiple second sliding rods are installed in the second cavity. Multiple second through slots and multiple third through slots are opened on the fixing frame. The second sliding rods pass through the second through slots and the third through slots and are fixedly connected to the cavity wall of the second cavity.

[0012] Optionally, the second sliding rod is fixedly connected to the first plug and the second plug, the first plug is located in the second through groove, the second plug is located in the third through groove, and an air outlet pipe is fixed on the second connector, which is connected to the second cavity.

[0013] Optionally, an electric telescopic rod is fixed inside the second cavity. The output end of the electric telescopic rod is fixedly connected to the fixed frame. The air outlet pipe and the sealing film are located on both sides of the fixed frame, and the two ends of the guide shaft are located inside the first connector and the second connector, respectively.

[0014] Optionally, a second sealing plate is fixed inside the second connector, and the pressure detector includes a pressure sensor fixed to the second sealing plate.

[0015] The technical solution provided in this disclosure may include the following beneficial effects: 1. The guide shaft is rotated and installed inside the support frame. The guide shaft can support the ventilator tube, thereby preventing the ventilator tube from folding and ensuring normal ventilation during the test. This prevents the air leakage from being blocked and affecting the accuracy of the test results. Moreover, the test tube can be used for testing. Not only can the ventilator tube be disassembled for individual testing, but it can also be tested while the ventilator tube is in use. This makes the device more flexible to use and expands the scope of application of the device.

[0016] 2. Install a detection rod on the detection tube, install a first sealing airbag at both ends inside the detection tube, and install a first connector and a second connector at both ends of the detection tube. During testing, the first connector and the second connector can be used selectively. This allows the ventilator tube to be connected to both ends of the ventilator tube for testing, or the ventilator tube to be passed through the detection tube for testing. This makes the device more flexible to use, ensures airtightness during the testing process, prevents air leakage from affecting the test results, and eliminates the need for soaking during testing, thus preventing the ventilator tube from being affected in terms of lifespan and ensuring normal use of the ventilator tube.

[0017] 3. The first sliding rod is slidably installed inside the detection rod. The negative pressure environment inside the detection tube changes rapidly when the ventilator tube leaks, thereby pushing the first sliding rod to move. This ensures the accuracy of the detection. Furthermore, the degree of leakage can be detected based on the moving speed and distance of the first sliding rod. The location of the leak can be detected quickly and accurately, thereby improving the working efficiency of the device.

[0018] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the overall assembly three-dimensional structure of the flexible fit ventilator tubing non-destructive leakage detection device proposed in an embodiment of this disclosure; Figure 2 This is a schematic diagram of the overall assembly cross-sectional structure of the flexible fit ventilator tubing non-destructive leakage detection device proposed in one embodiment of this disclosure. Figure 3 yes Figure 2 A schematic diagram at point A in the middle; Figure 4 yes Figure 2 A schematic diagram at point B in the middle; Figure 5 This is a schematic diagram of the assembly cross-sectional structure of the detection rod in a flexible, non-destructive leak detection device for ventilator tubing according to an embodiment of this disclosure. Figure 6 This is an exploded view of the detection tube, ventilator tube, first connector, and second connector in a flexible, non-destructive leak detection device for ventilator tubing according to an embodiment of this disclosure. Figure 7This is a schematic diagram of the assembly cross-sectional structure of the detection tube, ventilator tube, first connector, and second connector in a flexible fit ventilator tubing non-destructive leakage detection device proposed in an embodiment of this disclosure. Figure 8 This is a schematic diagram of the assembly structure of the support frame, detection tube, and detection rod in a flexible, non-destructive leak detection device for ventilator tubing according to an embodiment of this disclosure. Figure 9 This is a schematic diagram of the assembly cross-sectional structure of the support frame and the detection tube in a flexible, non-destructive leak detection device for ventilator tubing according to an embodiment of this disclosure. Figure 10 This is a schematic diagram of the assembly structure of the detection tube, the first connector, and the second connector in a flexible, non-destructive leak detection device for ventilator tubing according to an embodiment of this disclosure. As shown in the figure: 101, support frame; 102, connecting frame; 103, motor; 104, rotating shaft; 105, guide shaft; 106, ventilator tube; 107, groove; 108, protrusion; 201. Detection tube; 202. Air chamber; 203. Detection rod; 204. Sliding groove; 205. First connecting port; 206. First sliding rod; 207. Distance sensor; 208. Piston; 301. Connecting air tube; 302. Second connecting port; 303. First sealing plate; 304. Connecting rod; 305. Spring; 306. First through groove; 307. First sealing airbag; 308. Connecting airway; 3309. Electric valve; 401. First slot; 402. First locking block; 403. First connector; 404. Second sealing airbag; 405. Third connecting port; 406. First cavity; 407. Extrusion block; 408. Fixing bolt; 501. Second locking block; 502. Second locking slot; 503. First electrode plate; 504. Second electrode plate; 505. Second connector; 506. Second cavity; 507. Fixing frame; 508. Second sliding rod; 509. Second through slot; 510. Third through slot; 511. Sixth connecting port; 512. Electric telescopic rod; 513. Fourth connecting port; 514. Pressure sensor; 515. Adhesive sealing film; 516. Air outlet pipe; 517. Second sealing plate; 518. First plug; 519. Second plug; 520. Fifth connecting port. Detailed Implementation

[0020] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0021] like Figures 1 to 10 As shown in the embodiment, this disclosure proposes a flexible, non-destructive leak detection device for ventilator tubing, comprising: a support frame 101, on which a support structure is mounted, the support structure including a guide shaft 105 rotatably fitted within the support frame 101, a ventilator tubing 106 mounted on the guide shaft 105, and a connecting frame 102 fixed within the support frame 101; a detection structure, comprising a detection tube 201 fixedly connected to the connecting frame 102, a detection rod 203 fixedly mounted on the detection tube 201, a first sliding rod 206 slidably fitted within the detection rod 203, a distance detector mounted within the detection rod 203, an air chamber 202 formed within the tube wall of the detection tube 201, a plurality of first through grooves 306 formed between the air chamber 202 and the detection tube 201, and a blocking structure within the air chamber 202, the blocking structure including a first sealing plate 303, the first sealing plate 303 being located at... The periphery of the first through groove 306; the connecting structure, the connecting structure including a first connector 403 and a second connector 505, both the first connector 403 and the second connector 505 are snapped and fixed to the detection tube 201, both ends of the detection tube 201 are equipped with a first fitting and sealing airbag 307, the first connector 403 is equipped with a second fitting and sealing airbag 404, the second connector 505 is equipped with a pressure detector, the second connector 505 is provided with a second cavity 506, the second cavity 506 is connected to the second connector 505, the second cavity 506 is equipped with a fixing frame 507, the fixing frame 507 is slidably fitted with a first plug 518 and a second plug 519, the second connector 505 is equipped with a fitting and sealing film 515, the first fitting and sealing airbag 307, the second fitting and sealing airbag 404 and the fitting and sealing film 515 are all connected to the ventilator tube 106.

[0022] Specifically, when it is necessary to test the disassembled ventilator tubing 106, a first connector 403 and a second connector 505 are installed at both ends of the test tube 201, respectively. The two ends of the ventilator tubing 106 are connected to the first connector 403 and the second connector 505, respectively. An air pump is installed on one side of the support frame 101, and a pressure sensor is installed inside the test tube 201. Air is then delivered through the air outlet of the air pump connected to the connecting air tube 301, thus sending gas into the test tube 201. The gas is then sent into the ventilator tubing 106 through the first connector 403. The two pressure sensors detect whether the air pressure is parallel, or in a sealed environment... Based on this, the system determines whether there is an air leak and the degree of leak based on the changes in the detection results of the air pressure sensor 514. When precise detection of the location of the leak is required, one end of the ventilator tube 106 is connected to the air source, and then the ventilator tube 106 is passed through the detection tube 201. For the part of the ventilator tube 106 located inside the detection tube 201, it is sealed by the first sealing airbags 307 at both ends of the detection tube 201. Air is drawn out of the detection tube 201 to make it a negative pressure state. If the ventilator tube 106 leaks at this time, the air pressure inside the detection tube 201 will change, thereby achieving a better detection result and improving the working efficiency of the device.

[0023] In this embodiment: a motor 103 is fixed on the support frame 101, and a rotating shaft 104 is rotatably fitted inside the support frame 101. The output end of the motor 103 is fixedly connected to the rotating shaft 104, and the rotating shaft 104 is fixedly connected to the guide shaft 105. The guide shaft 105 has a groove 107 and a plurality of protrusions 108 are fixed on the guide shaft 105. The protrusions 108 are in contact with the ventilator tube 106.

[0024] Specifically, when using the guide shaft 105 to support the ventilator tube 106, the ventilator tube 106 can be simply mounted on the guide shaft 105, or the ventilator tube 106 can be directly wrapped around the guide shaft 105. This ensures effective support for the ventilator tube 106, preventing bending and ensuring accurate test results. Furthermore, the protrusion 108 can elevate the ventilator tube 106, providing sufficient space around it to allow for air venting in case of leakage, further improving test accuracy. Alternatively, the motor 103 can be activated, causing the rotating shaft 104 to rotate, which in turn rotates the guide shaft 105. One end of the ventilator tube 106 can be fixed to the guide shaft 105 by adhesive or wrapping. The rotation of the guide shaft 105 then winds up the ventilator tube 106, facilitating precise detection of leaks and improving work efficiency.

[0025] The detection rod 203 has a sliding groove 204, and a first communication port 205 is provided between the sliding groove 204 and the detection tube 201. The distance detector includes a distance sensor 207, which is fixed in the sliding groove 204. One end of the first sliding rod 206 is located in the sliding groove 204, and a piston 208 is fixed to the end of the first sliding rod 206 located in the sliding groove 204.

[0026] Specifically, when accurately detecting the location of a leak, the detection tube 201 is under negative pressure. When the ventilator tube 106 leaks, the air pressure inside the detection tube 201 rises, which pushes the piston 208 upward, causing the first sliding rod 206 to slide upward. The sliding distance of the first sliding rod 206 can be detected by the distance sensor 207, thereby detecting a leak in the ventilator tube 106. Furthermore, the degree of leakage in the ventilator tube 106 can be detected based on the sliding distance of the first sliding rod 206 per unit time, improving the accuracy of the detection results, expanding the detection range of the device, ensuring the accuracy of the detection results, and improving the working efficiency of the device.

[0027] A connecting air pipe 301 is fixed on the detection tube 201, and the connecting air pipe 301 is connected to the air chamber 202. A second connecting port 302 is opened between the air chamber 202 and the detection tube 201. A first sealing plate 303 is located inside the air chamber 202. Multiple connecting rods 304 are fixed on the first sealing plate 303. A first through groove 306 is opened on one side of the air chamber 202. The connecting rods 304 are located in the first through groove 306. A sealing sleeve is fixed around the connecting rods 304. Multiple springs 305 are fixed between the first sealing plate 303 and the cavity wall of the air chamber 202. A connecting air passage 308 is opened inside the detection tube 201. The connecting air passage 308 is connected to the air chamber 202 and the first fitting sealing airbag 307. An electric valve 309 is installed inside the connecting air passage 308.

[0028] Specifically, when it is necessary to seal both ends of the detection tube 201, gas can be introduced into the gas chamber 202 through the connecting gas pipe 301, and the electric valve 309 can be opened to allow gas to enter the connecting gas channel 308, and then into the first sealing airbag 307, causing the first sealing airbag 307 to inflate and seal, thus ensuring the sealing effect of the device. Furthermore, the air pressure inside the first sealing airbag 307 can be stabilized by closing the electric valve 309, thereby improving the sealing effect of the device. When the first connector 403 is installed, the first locking block 402 will relatively squeeze and push the connecting rod 304, causing the connecting rod 304 to... 4. The first sealing plate 303 is slid, thereby connecting the air chamber 202 and the detection tube 201 through the second connecting port 302. This allows for the extraction or delivery of air into the detection tube 201. When the first connector 403 is removed, the spring 305 returns, which resets the first sealing plate 303. This seals the detection tube 201, ensuring stable air pressure inside the detection tube 201, thus guaranteeing stable detection, improving the accuracy of the detection results, and making the device more flexible to use. This allows the device to be used with guide shafts 105 of different sizes and specifications, expanding the applicability of the device.

[0029] One end of the detection tube 201 is provided with a first slot 401, and a first block 402 is fixed on the first connector 403. The first block 402 is snapped and fixed in the first slot 401. A first cavity 406 is provided in the first connector 403. A third communication port 405 is provided between the first cavity 406 and the second fitting sealing airbag 404. The first connector 403 is made of flexible material. A pressing block 407 is installed on the first connector 403. A fixing bolt 408 is threaded on the pressing block 407.

[0030] Specifically, the first connector 403 is secured in the first slot 401 by the first locking block 402. When connecting the ventilator tube 106, the first connector 403 can be squeezed by the ventilator tube 106, thus directly inserting the first connector 403 into the end of the ventilator tube 106. Then, by manually sliding the squeezing block 407 (which has an annular structure), the first connector 403 is squeezed by the squeezing block 407, causing the second sealing airbag 404 to inflate and seal the periphery of the ventilator tube 106. Then, the fixing bolt 408 is manually tightened to increase the friction between the bolt and the first connector 403, thereby ensuring the sealing effect of the device, preventing errors during the leak detection process, ensuring the accuracy of the detection results, and improving the detection efficiency.

[0031] The other end of the detection tube 201 has a second slot 502. A second locking block 501 is fixed on the second connector 505. The second locking block 501 is locked in the second slot 502. A first electrode plate 503 is fixed on the second locking block 501. A second electrode plate 504 is fixed in the second slot 502. The first electrode plate 503 and the second electrode plate 504 are in contact. The fixing frame 507 is slidably fitted in the second cavity 506. The fixing frame 507 has a sixth connecting port 511 and a fourth connecting port 513. The second connector 505 has a fifth connecting port 520. Through the sliding of the fixing frame 507, the fifth connecting port 520 is connected to the sixth connecting port 511 or the fourth connecting port 513. A plurality of second sliding rods 508 are installed in the second cavity 506. A plurality of second sliding rods 508 are installed on the fixing frame 507. A second through groove 509 and multiple third through grooves 510 are connected. A second sliding rod 508 passes through the second through groove 509 and the third through grooves 510 and is fixedly connected to the cavity wall of the second cavity 506. The second sliding rod 508 is fixedly connected to the first plug head 518 and the second plug head 519. The first plug head 518 is located in the second through groove 509, and the second plug head 519 is located in the third through groove 510. An air outlet pipe 516 is fixed on the second connector 505 and is connected to the second cavity 506. An electric telescopic rod 512 is fixed in the second cavity 506. The output end of the electric telescopic rod 512 is fixedly connected to the fixing frame 507. The air outlet pipe 516 and the sealing film 515 are located on both sides of the fixing frame 507. The two ends of the guide shaft 105 are located in the first connector 403 and the second connector 505, respectively. Specifically, when the second connector 505 is connected, it can be secured in the second slot 502 by the second locking block 501, ensuring its stability. At this time, the first electrode 503 and the second electrode 504 are in contact, providing power to the electric telescopic rod 512. When sealing the interior of the second connector 505 is required, the electric telescopic rod 512 is activated, moving the fixing frame 507 to the center. At this time, the fifth connecting port 520 is not connected to the sixth connecting port 511 or the fourth connecting port 513, thus achieving a better sealing effect on the interior of the second connector 505. When venting is required, the fixing bracket 507 is moved to the right side, connecting the sixth connecting port 511 and the fifth connecting port 520, and connecting the second through slot 509 to the outside, allowing venting through the outlet pipe 516. When sealing is required, the fixing bracket 507 is moved to the left side, connecting the fourth connecting port 513 and the fifth connecting port 520, and connecting the third through slot 510 to the outside, allowing the outflowing gas to press against the sealing film 515. The sealing film 515 seals the ventilator tube 106, ensuring the stability of the device, improving work efficiency, reducing errors during testing, and improving testing accuracy.

[0032] The second connector 505 has a second sealing plate 517 fixed inside, and the pressure detector includes a pressure sensor 514 fixed on the second sealing plate 517.

[0033] Specifically, when the second connector 505 is in a sealed state, the air pressure inside the second connector 505 can be detected by the air pressure sensor 514. When there is no air leakage in the ventilator tube 106, the air pressure inside the second connector 505 is gradually increasing, so the pressure can be detected by the air pressure sensor 514. When there is a leak, the air pressure change gradually tends to balance, thus achieving a better detection effect, higher detection efficiency, and improved accuracy of the detection results.

[0034] Workflow: A first connector 403 and a second connector 505 are installed at both ends of the detection tube 201. The first connector 403 is secured in the first slot 401 by the first locking block 402. When connecting the ventilator tube 106, the first connector 403 can be squeezed by the ventilator tube 106 to directly insert it into the end of the ventilator tube 106. Then, by manually sliding the squeezing block 407 (which has a ring structure), the first connector 403 is squeezed, causing the second sealing airbag 404 to inflate against the ventilator. The periphery of pipe 106 is sealed, and then the fixing bolt 408 is manually tightened to increase friction with the first connector 403, thereby ensuring the sealing effect of the device. The second connector 505 can be fixed in the second slot 502 by the second locking block 501, thereby ensuring the stability of the second connector 505. At this time, the first electrode plate 503 and the second electrode plate 504 are in contact, so that they can be used to supply power to the electric telescopic rod 512. When it is necessary to seal the inside of the second connector 505, the electric telescopic rod 512 is activated, and the fixing bolt 405 can be sealed by the electric telescopic rod 512. When the fixed bracket 507 is moved to the middle, the fifth connecting port 520 is not connected to the sixth connecting port 511 and the fourth connecting port 513, thus achieving a better sealing effect on the inside of the second connector 505. When venting is required, the fixed bracket 507 is moved to the right side, connecting the sixth connecting port 511 and the fifth connecting port 520, and the second through slot 509 is connected to the outside, allowing venting through the vent pipe 516. When sealing is required, the fixed bracket 507 is moved to the left side, connecting the fourth connecting port 513 and the fifth connecting port 520. The three-way groove 510 is connected to the outside, allowing the outflowing gas to squeeze and adhere to the sealing film 515. The sealing film 515 seals the ventilator tube 106. Gas is introduced into the air chamber 202 through the connecting air tube 301. The electric valve 309 is opened, allowing gas to enter the connecting airway 308 and then into the first sealing airbag 307. This causes the first sealing airbag 307 to inflate and seal, ensuring the sealing effect of the device. Furthermore, the pressure inside the first sealing airbag 307 can be stabilized by closing the electric valve 309, thereby improving the sealing effect of the device.When the first connector 403 is installed, the first locking block 402 will relatively press and push the connecting rod 304, causing the connecting rod 304 to slide the first sealing plate 303. This allows the air chamber 202 to connect with the detection tube 201 through the second connecting port 302, enabling the extraction or delivery of air into the detection tube 201. When the first connector 403 is removed, the spring 305 will return, causing the first sealing plate 303 to reset, thus sealing the detection tube 201 and ensuring the detection... When the air pressure inside the detection tube 201 is stable and the tube is under negative pressure, if the ventilator tubing 106 leaks, the air pressure inside the detection tube 201 rises, pushing the piston 208 upwards. This causes the first sliding rod 206 to slide upwards, and the sliding distance of the first sliding rod 206 can be detected by the distance sensor 207. This allows for leak detection of the ventilator tubing 106, and the degree of leak can be determined based on the sliding distance of the first sliding rod 206 per unit time.

[0035] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0036] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A flexible, non-destructive leak detection device for ventilator tubing, characterized in that, include: A support frame (101) is provided with a support structure, the support structure including a guide shaft (105) rotatably fitted inside the support frame (101), a ventilator tube (106) is provided on the guide shaft (105), and a connecting frame (102) is fixed inside the support frame (101). The detection structure includes a detection tube (201), which is fixedly connected to a connecting frame (102). A detection rod (203) is fixed on the detection tube (201). A first sliding rod (206) is slidably fitted inside the detection rod (203). A distance detector is installed inside the detection rod (203). An air cavity (202) is opened inside the tube wall of the detection tube (201). A plurality of first through grooves (306) are opened between the air cavity (202) and the detection tube (201). A blocking structure is installed inside the air cavity (202). The blocking structure includes a first sealing plate (303). The first sealing plate (303) is located on the periphery of the first through groove (306). The connection structure includes a first connector (403) and a second connector (505). Both the first connector (403) and the second connector (505) are snapped and fixed to the detection tube (201). Both ends of the detection tube (201) are equipped with a first sealing airbag (307). A second sealing airbag (404) is installed on the first connector (403). A pressure detector is installed inside the second connector (505). A second cavity is formed inside the second connector (505). (506) The second cavity (506) is connected to the second connector (505). A fixing frame (507) is installed in the second cavity (506). A first plug (518) and a second plug (519) are slidably fitted in the fixing frame (507). A sealing film (515) is installed in the second connector (505). The first sealing airbag (307), the second sealing airbag (404) and the sealing film (515) are all connected to the ventilator tube (106).

2. The flexible, non-destructive leak detection device for ventilator tubing according to claim 1, characterized in that, include: A motor (103) is fixed on the support frame (101), and a rotating shaft (104) is rotatably fitted inside the support frame (101). The output end of the motor (103) is fixedly connected to the rotating shaft (104), and the rotating shaft (104) is fixedly connected to the guide shaft (105). The guide shaft (105) has a groove (107) and a plurality of protrusions (108) are fixed on the guide shaft (105). The protrusions (108) are in contact with the ventilator tube (106).

3. The flexible, non-destructive leak detection device for ventilator tubing according to claim 1, characterized in that, include: The detection rod (203) has a sliding groove (204) inside, and a first communication port (205) is provided between the sliding groove (204) and the detection tube (201). The distance detector includes a distance sensor (207), which is fixed in the sliding groove (204). One end of the first sliding rod (206) is located in the sliding groove (204), and a piston (208) is fixed at the end of the first sliding rod (206) located in the sliding groove (204).

4. The flexible, non-destructive leak detection device for ventilator tubing according to claim 1, characterized in that, include: A connecting air pipe (301) is fixed on the detection tube (201), and the connecting air pipe (301) is connected to the air chamber (202). The first sealing plate (303) is located inside the air chamber (202). Multiple connecting rods (304) are fixed on the first sealing plate (303). A first through groove (306) is opened on one side of the air chamber (202). The connecting rods (304) are located inside the first through groove (306). A sealing sleeve is fixed around the connecting rods (304). Multiple springs (305) are fixed between the first sealing plate (303) and the cavity wall of the air chamber (202). The detection tube (201) is provided with a connecting air passage (308), which is connected to the air chamber (202) and the first sealing airbag (307). An electric valve (309) is installed in the connecting air passage (308).

5. The flexible, non-destructive leak detection device for ventilator tubing according to claim 1, characterized in that, include: The detection tube (201) has a first slot (401) at one end, and a first block (402) is fixed on the first connector (403). The first block (402) is snapped into the first slot (401). A first cavity (406) is opened in the first connector (403). A third communication port (405) is opened between the first cavity (406) and the second sealing airbag (404). The first connector (403) is made of flexible material. A compression block (407) is installed on the first connector (403). A fixing bolt (408) is threaded on the compression block (407).

6. The flexible, non-destructive leak detection device for ventilator tubing according to claim 1, characterized in that, include: The other end of the detection tube (201) is provided with a second slot (502), and a second block (501) is fixed on the second connector (505). The second block (501) is snapped and fixed in the second slot (502). A first electrode plate (503) is fixed on the second block (501), and a second electrode plate (504) is fixed in the second slot (502). The first electrode plate (503) and the second electrode plate (504) are in contact.

7. The flexible, non-destructive leak detection device for ventilator tubing according to claim 1, characterized in that, include: The fixing frame (507) is slidably fitted in the second cavity (506). The fixing frame (507) has a sixth connecting port (511) and a fourth connecting port (513). The second connector (505) has a fifth connecting port (520). Through the sliding of the fixing frame (507), the fifth connecting port (520) is connected to the sixth connecting port (511) or the fourth connecting port (513). The second cavity (506) is equipped with a plurality of second sliding rods (508). The fixing frame (507) has a plurality of second through slots (509) and a plurality of third through slots (510). The second sliding rods (508) pass through the second through slots (509) and the third through slots (510) and are fixedly connected to the cavity wall of the second cavity (506).

8. The flexible, non-destructive leak detection device for ventilator tubing according to claim 7, characterized in that, include: The second sliding rod (508) is fixedly connected to the first plug (518) and the second plug (519). The first plug (518) is located in the second through groove (509), and the second plug (519) is located in the third through groove (510). An air outlet pipe (516) is fixed on the second connector (505), and the air outlet pipe (516) is connected to the second cavity (506).

9. The flexible, non-destructive leak detection device for ventilator tubing according to claim 8, characterized in that, include: An electric telescopic rod (512) is fixed inside the second cavity (506). The output end of the electric telescopic rod (512) is fixedly connected to the fixed frame (507). The air outlet pipe (516) and the sealing film (515) are located on both sides of the fixed frame (507). The two ends of the guide shaft (105) are located inside the first connector (403) and the second connector (505) respectively.

10. The flexible, non-destructive leak detection device for ventilator tubing according to claim 1, characterized in that, include: The second connector (505) has a second sealing plate (517) fixed inside, and the pressure detector includes a pressure sensor (514) fixed on the second sealing plate (517).

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